The capacitive transducer comprises of two parallel metal plates that are separated by the material such as air, which is called as the dielectric material. 1 and 2, a pressure resistive transducer 10 of the present invention is shown. 50+ MCQ with answer and reasoning Transducers, Measurement & Instrumentation-Resistive, Capacitive, Inductive and Piezoelectric Transducers and Their Signal Conditioning: Questions 1-5 of 6. They have a common working principle, which states that the measured parameter results in a small change in the resistance of a transducer. Resistive Type of Sensors - Their Analysis and Applications Debasmit Das 10115039 Batch : E3 2. It measures temperature, pressure, displacement, force, vibrations, etc. c. Laser. Acting as a secondary transducer, LVDT can be used as a device to measure force, weight & pressure etc. For example resistive capacitive inductive transducers. Resistance Strain Gauge – The change in value of resistance of metal semi-conductor due to elongation or compression is known by the measurement of torque, displacement or force. Resistive sensors are among the most common in instrumentation. AC Circuit - Resistive Circuit objective questions (mcq) and answers; 1. Transducers, Measurement & Instrumentation: Questions 1-5 of 13. 36) If the ambient temperature is doubled and pressure fluctuates, then the transmission time of radar through air is a. Resistive transducer. Resistive Transducers-related Conferences, Publications, and Organizations. A. The temperature effects transducers. 30,000 lux. Q.127.The transducers used for measurement of linear displacement are (a) strain gauges and resistive potentiometers (b) LVDTs, capacitive transducers and Hall effect transducers (c) thermocouples, thermistes and RTDs (d) both (b) and (c) Q.128.Which of the following additional is required for measuring pressure with piezoelectric crystal? A. node. Transducer Output is Proportional to the Displacement. photoelectric transducers? They can be categorized as piezoelectric, thermoelectric, magnetorestrictive, electrokinetic and optical. a. MCQ in Transducers ; MCQ in Motor Speed Control Systems ; MCQ in Robotic Principles ; MCQ in Bioelectrical Principles ; MCQ in Instrumentation and Control; MCQ in Sensors; MCQ in Optoelectronics devices ; Continue Practice Exam Test Questions Part 10 of the Series. A. Ground resistance value for sensitive installations is: Less than 5 ohms; 5 – 25 ohms; 50 ohm; 100 ohms; Correct answer: 1. a. Photodiodes. Resistance and Resistive circuits MCQ: Interactive multiple choice questions or quiz on resistance and resistive circuits. Introduction A resistive sensor is a transducer or electromechanical device that converts a mechanical change such as displacement into an electrical signal that can be monitored after conditioning. It is a passive transducer that means it requires external power for operation. The most commonly used type of transducer is variable resistance transducer. Transducers Prof. B. D. Kanani, EE Department Electrical Measurements and Measuring Instruments (2130903) 1 5.1. Pressure transducer for measuring blood pressure is a) Strain gauge transducer only b) Strain gauge or capacitive transducer c) Resistive transducer d) Fiber optic transducer Ans : (b) 36. d. Only (a) and (b) e. All the above. Passive Transducers Resistive Transducers. The strain gauge, photoresistor, photodiode, phototransistor, and thermistor come under resistive type passive transducers. Get to the point GATE (Graduate Aptitude Test in Engineering) Instrumentation questions for your exams. These transducers require external power source for energy conversion. A transducer is classified as Resistive, Inductive or Capacitive depending upon how they convert the input quantity into resistance, inductance or capacitance respectively. Q2) Optical sensors used for the displacement measurement works on the principal that. LDR’s are also called _____ a) Photo voltaic cell b) Photo resistive cell c) Photo emissive cell d) All of the mentioned 19. B. 35) The transducer used for the measurements is / are a. Capacitive Transducer Definition: The capacitive transducer is used for measuring the displacement, pressure and other physical quantities. Basically a resistance potentiometer, or simply a POT, (a resistive potentiometer used for the purposes of voltage division is called a POT) consists of a resistive element provided with a sliding contact. The capacitance of a passive capacitance transducer depends on the following factors, except? The working of a resistive transducer can be explained by considering a conductor rod as the transducer. Question 38. B. Resistance Thermometer – The change in resistance of metal wire due to the change in temperature known by the measurement of temperature. … The transducer works on the principle of the length of the conductor. 5. Resistive Sensors 1. a) X ray b) Gamma ray c) Alpha and beta rays d) None of the mentioned 18. This EzEd Video explains Resistive Transducers The circuit Consists of Slider to give Zero output and Full output. Current lags behind the voltage by 90 o. MCQ in AC-DC circuits ; MCQ in Resistors ; MCQ in Inductors ; MCQ in Capacitors ; Continue Practice Exam Test Questions Part 8 of the Series. 351. Applications of LVDT. 451. The POT is a passive transducer. A. Q5. It is otherwise called as resistive sensors. A resistive transducer is mainly used in the calculation of temperature, displacement, pressure, force. The variable resistance transducers are also called as resistive transducers or resistive sensors. One-half of . Strain gauge. The LVDT can be used in all applications where displacement ranging from fractions of a few mm to a few cms have to be measured. to understand the working principle, consider a conductor rod. Piezoresistive transducers are based on the idea that a mechanical input (pressure, force, or acceleration for example) applied to a mechanical structure of some kind (a beam, a plate, or a diaphragm) will cause the structure to experience mechanical strain. ? Small piezoresistors attached to the structure undergo the same mechanical strain. 50,000 lux. Resistance Hygrometer – The change in … May 21, 2018 - Practice Resistive Transducers objective questions and answers, Quiz & MCQ to crack any sort of interviews, competitive exams and entrance tests. Less than 5 ohms. Resistive Transducers 1. CLASSIFICATION OF PASSIVE TRANSDUCERS 17. 2. 1. ANSWER: All of these. Answer : Advantages : Inexpensive A. C. Linear variable differential transformer (LVDT) D. Photodiode. The return point in a circuit, where all voltage measurements are referred. In a purely resistive, the average power P av is.....the peak power P max. Q1) The detectors used in optical sensors is. They produce an output signal in the form of some variation in resistance, capacitance or any other electrical parameter, which than has to be converted to an equivalent current or voltage signal. Transducrs MCQ Questions 1. The following are resistive passive transducers, except? 3. b. Phototransistors . In such transducers electrical parameters i.e resistance inductance or capacitance causes a change in voltage ,current or frequency of the external power source. For example, a photocell (LDR) is a passive transducer which will vary the resistance of … Sunlight corresponds to about. Distance between the two parallel plates. A. C. One-fourth. Choose the letter of the best answer in each questions. 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